Step 7Connect your board to the transmitter
Connect the positive battery(probably red) wire from the transmitter to the 7805's VCC pin on your board. Connect the ground wire to ground on your board.
And now's probably a good time to wire up the serial DB-9 connector to your board. Connect the PC_TX line to pin 2 of the DB9 connector, the PC_RX line to pin3, and the GND line to pin 5. There are tiny little numbers on the solder side of the DB-9 connector that should give you an idea of what I'm talking about. If you don't see them, look up DB-9 pinout in google, and that oughta help
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